Getting a clean 1999 dodge cummins turbo setup is basically like finding a needle in a haystack these days, but it's honestly worthy of the hunt. In case you're into diesel-powered trucks, you already know that 1999 was a little bit of a strange, transitional year. I was firmly into the 24-valve era, moving away from the particular mechanical simplicity of the 12-valve, yet all of us hadn't quite strike the high-pressure typical rail systems that defined the mid-2000s. It sits with this sweet spot associated with "new enough to be capable" and "old enough to nevertheless feel mechanical. "
The cardiovascular of that experience, with regard to many of us, is definitely the turbocharger. It's the component which gives the 5. 9L engine its character. Without it, you've just got great, slow-revving tractor motor. With it, you have a towing machine that may whistle its method up a hill grade without busting a sweat.
The Stock Holset HX35 Experience
When you appear the hood of a stock 1999 Dodge, you're searching at the Holset HX35W . For many owners, this turbo is the gold standard of reliability. This isn't the biggest thing in the particular world, and it definitely isn't the flashiest, but it had been built to function. Among the things I adore about the HX35 is its simplicity. It features a mechanical wastegate that's simple enough to tinker with if a person want a small more boost, although you have in order to be careful not to overdo this.
The way a stock 1999 dodge cummins turbo responds to your right foot is pretty unique. There's that classic diesel lag—you stage on the gasoline, wait for a second while the soot builds, and then whoosh , the boost leg techinques in as well as the pickup truck starts moving. It's not the instant-on power you obtain with a modern variable geometry turbo (VGT), but there's something incredibly satisfying about this old-school power delivery. It feels deliberate.
Why Individuals Love (and Hate) the 24-Valve Set up
The 1999 model year used ISB 5. 9L, and while the particular turbo does a lot of the heavy lifting, it's inextricably linked in order to the VP44 injection pump . Now, in the event that you've spent any moment on diesel community forums, you know the VP44 is a bit of a touchy subject. It's the literal "heart" that feeds the particular turbo's air, but it's notoriously sensitive to fuel pressure.
Why does this matter intended for the turbo? Well, because these 2 components have in order to dance together. If your fuel water pump is struggling, your turbo isn't going to get the wear out energy it needs in order to spool up correctly. You'll end up getting high exhaust gas temps (EGTs) and also a pickup truck that seems like it's dragging an core. But when that will fuel system is healthy, the 1999 dodge cummins turbo really can sing. It provides just enough atmosphere to make good power while maintaining things relatively cool under a weight.
Recognizing the particular Signs of the Tired Turbo
Nothing lasts forever, and after twenty-plus years on the road, many initial turbos are starting to demonstrate their age. If you're traveling a '99 and you notice a weird high-pitched screeching sound—different from the normal whistle—you might be looking at bearing failure.
Another big reddish flag is "turbo bark. " This particular usually happens whenever you're under large boost and suddenly let off the throttle. The stress has nowhere in order to go, so it kicks back towards the compressor wheel. It sounds just like a literal cough or perhaps a bark. While this sounds kind of cool for some people, it's actually fairly hard for the internals. If you notice oil pooling in the intercooler boots or notice excessive shaft play (you can check this by wiggling the compressor wheel gently with your fingers whenever the engine is definitely off), it's probably time for the rebuild or a good upgrade.
The Rabbit Hole associated with Turbo Upgrades
As soon as you decide that will the stock HX35 isn't performing anymore, things get really interesting. The aftermarket support for your 1999 dodge cummins turbo is absolutely huge. You can proceed in twelve various directions based on exactly what you actually perform together with your truck.
The 62mm "Sweet Spot"
A lot of men go for the 62mm turbo. It's slightly larger than stock but still spools up quickly plenty of for daily traveling. If you use your truck with regard to towing a recreational camper or an equine trailer, this is definitely usually the way to go. A person get more air flow, which helps reduced those EGTs, but you don't lose that low-end grunt that makes a Cummins so good at pulling.
Going Big using a S300 or S400
Then you will find the guys which want to change their '99 right into a tire-shredding monster. Changing in a BorgWarner S300-based turbo is definitely a classic shift. It's a bit more involved because you might need different downpipes or oil lines, however the power ceiling is way higher. Just keep in thoughts that the bigger the turbo, the more lag you're going to deal with. If you put a massive S400 upon a 1999 Dodge, it's going to be a dog off the line until that big wheel lastly starts spinning.
Supporting the Airflow
You can't just slap a huge turbo on the 1999 Cummins plus call it a day time. It's a method. If you increase the air, you require more fuel to match it. This particular usually means improving your injectors and ensuring VP44 pump motor is getting plenty of fuel from a high-flow lift pump (like a FASS or even AirDog system).
Also, don't forget about the exhaust . A bigger 1999 dodge cummins turbo wants to breathe. Most people swap out the stock 3-inch or even 3. 5-inch wear out for a 4-inch straight pipe or a high-flow muffler. Not only does this help the particular turbo spool quicker by reducing back pressure, but it furthermore gives the truck that deep, guttural roar that we all love.
Maintenance Tips in order to Keep It Whizzing
If you're lucky enough in order to have a healthy turbo on your own 1999 Dodge, you want to keep it that way. The single most essential thing that you can do is change your oil . Turbos spin at extremely high RPMs—sometimes over 100, 000 RPM—and they rely on the thin film of oil to keep the particular bearings from burning. If that essential oil is dirty or broken down, your own turbo is upon borrowed time.
Another pro tip: let the pickup truck idle for a minute or 2 before you shut it off, especially after a long haul or perhaps an enthusiastic drive. If you shut the engine lower immediately while the turbo is still glowing hot, the essential oil inside the turbo can "cook" or carbonize. This is usually called "coking, " and it's a leading cause of premature turbo failure. Allowing it to cool lower for sixty secs allows fresh essential oil to circulate plus pull that heat away.
Is the 1999 Still Relevant?
You may wonder if it's even worth playing using a twenty-five-year-old pickup truck. Honestly, I believe it is. Contemporary trucks are amazing, don't get me personally wrong, but they're also incredibly complicated. They're full associated with sensors, DEF liquid, and complex consumer electronics that may cost a fortune to fix.
The particular 1999 dodge cummins turbo setup is definitely relatively simple. It's a mechanical beast that you can actually work upon in your driveway with a fundamental tools. There's a sense of pride that comes through keeping one of them aged second-gens on the highway. Whether or not you're keeping it stock for that dependability or pushing five hundred horsepower with an upgraded snail, these vehicles just have a soul that modern pickups seem in order to be missing.
At the finish of the time, the 1999 Dodge is really a workhorse. It's noisy, it vibrates, and it smells such as diesel, but it will get the job completed every single time. And as long as that turbo is spinning plus the boost gauge is climbing, life is pretty good.